<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE security [
<!ENTITY attachparam SYSTEM "attach-value.xml">
<!ENTITY udf SYSTEM "udfasset.xml">
]>
<property>
           &attachparam;

</property>

<value regex=".+">localhost</value>
<value regex="^[A-Z]+">allow</value>

<?xml version="1.0" encoding="UTF-8" standalone="no">
<property>
     <value regex=".+" xml:base="file:///home/bharathi/attach-value.xml">localhost</value>
     <value regex="^[A-Z]+" xml:base="file:///home/bharathi/attach-value.xml">allow</value>
</property>

TransformerFactory transformerFactory = TransformerFactory.newInstance();
                Transformer transformer = transformerFactory.newTransformer();

                DOMSource source = new DOMSource(document);

                String tempFile = "/home/bharathi/out.xml";
                LOGGER.log(Level.INFO, "tempFile is :: " + tempFile);

                StreamResult result = new StreamResult(new File(tempFile));

                transformer.transform(source, result);